How to create social media carousels from inside Claude

TL;DR

• To create carousels from Claude, add Zynta Flow as a custom connector in Customize, Connectors with the address https://app.zyntaflow.com/mcp, then sign in to Zynta Flow and approve access.
• Claude can then write the slides, apply a brand kit, write the caption and put the post on your calendar from one message. It does not publish directly, but a scheduled post goes out as scheduled unless you change it first.
• MCP works on every Zynta Flow plan, including the 7-day trial with 300 credits, and spends the same credits as the web app.

You are already writing in Claude. You describe the post you want, Claude writes something good, and then you leave the conversation, open a design tool, rebuild the idea slide by slide, apply your brand, export, and go schedule it somewhere else.

That handoff is the whole problem. Zynta Flow runs a remote MCP server, so you can skip it: ask for the carousel in the conversation and it appears in your Zynta Flow account, on brand, ready to schedule.

Here is how to set it up, what it can actually do, and where the edges are.

What MCP is, briefly

MCP (Model Context Protocol) is an open standard for letting an AI assistant use an outside tool. Anthropic published it in November 2024 and it is now supported by Claude, ChatGPT, Cursor, and a long list of others.

A "remote MCP server" is a URL. You give it to your assistant, sign in once, and from then on the assistant can call that product's features directly. Nothing is installed, nothing runs on your laptop.

Zynta Flow's server lives at:

https://app.zyntaflow.com/mcp

Connecting it to Claude

1. Open Customize, then Connectors.
2. Click + Add, then Add custom connector.
3. Enter a name, paste https://app.zyntaflow.com/mcp and click Continue.
4. Claude checks the URL and fills in the authentication settings on its own. You do not need to create an API key, paste a client ID, or fill in a secret. Click Continue, choose to sign in now and click Add.
5. A Zynta Flow sign-in opens. Sign in, click Approve, and you are done.

That step 4 is worth a sentence. Zynta Flow implements OAuth 2.1 with PKCE and Dynamic Client Registration, which is the part of the spec that lets a client register itself. It is why the setup is a paste and a sign-in rather than a support ticket.

Two things to know:

• Custom connectors work on Claude, Claude Desktop and Cowork, on free and paid plans. Free accounts are limited to one custom connector, so if you already have one you will need to choose. On Team and Enterprise, an Owner adds the connector under Organization settings, then Connectors, and members connect it from Customize, then Connectors (Claude Help Center).
• Claude connects to the server from Anthropic's cloud, not from your computer. That is fine here, since Zynta Flow is on the public internet, but it is the reason a server running on your own machine would not work.

To change a connector later, remove it and add it again. There is no edit.

What you can ask for

Once it is connected, this is the kind of thing that works:

Make me a 6 slide carousel about why most agency content approvals take three days, in the Zuur brand kit, and schedule it for Tuesday at 6pm.

Claude will generate the copy slide by slide, apply the brand kit you named, build the slides, write the caption, and create the calendar entry. You get a link back and can open it in the editor if you want to change anything.

The full set of things it can do:

• Create: generate a carousel from a brief, create a single image post, adjust a slide's layout, attach your own image or pull one from Unsplash.
• Write: set the caption for a post, in the brand voice.
• Brand: read, create, and update brand kits, and list the ones you have.
• Schedule: create, update and read calendar entries, so a post can be planned for a specific date and time.
• Automate: list, create and update comment-to-DM rules and multi-step flows on a connected Instagram account.
• Read: list your drafts and presets, see which social accounts are connected, and pull post analytics.

It does not publish directly. When it schedules a post, Zynta Flow publishes it at that time unless you change it in the calendar first, and a brand kit can require client approval before anything goes out.

What it costs

MCP is on every plan, including the 7-day trial. It is not a tier perk.

Actions spend credits from the same balance at the same rate as the web app: a carousel with AI copy is 20 to 45 credits depending on slide count, a caption is 10, publishing is 5 per post per network. Reading your brands, drafts, and analytics is free.

If the balance runs out, the assistant gets an "insufficient credits" answer, exactly like you would in the app. There is no way for an agent to spend money you have not already put in the account.

Where this actually helps

Honestly, not everywhere. If you make one carousel a month, opening the app is fine.

It earns its place when you run several brands. The pattern that changed how I work is asking for the same brief across different brand kits in one message, and getting back a set of posts that each look like they belong to their own company. Doing that by hand is the afternoon you were dreading.

It also helps when the idea arrives mid conversation. You are talking through positioning with Claude, something good comes out of it, and instead of writing it down to handle later, you say "make that a carousel for Thursday" and it is handled.

If something goes wrong

The connector fails to add. Check that you pasted the full address, https://app.zyntaflow.com/mcp. The bare zyntaflow.com domain is the marketing site, not the MCP server.

Sign-in works but nothing happens. Remove the connector and add it again. Claude has no edit, and a half-configured connector stays half-configured.

A tool call comes back with insufficient credits. That is the balance, not the connection. Top up or wait for the monthly grant.

You want to use a client that cannot do OAuth. Create a personal access token in Zynta Flow under MCP & API, in the account menu, and send it as a bearer token. That path exists for automation, which has no browser to open a consent screen in.

Try it

Zynta Flow gives you 300 credits for 7 days. A card is required, but nothing is charged today. Connect the server, ask for a carousel, and see whether the output is something you would actually post.

Start the trial or read the MCP setup page.

Frequently asked questions

How do I connect Zynta Flow to Claude?

In Claude, open Customize, then Connectors, click + Add and choose Add custom connector. Give it a name, paste https://app.zyntaflow.com/mcp and click Continue. Click Continue again, choose to sign in now and click Add, then sign in to Zynta Flow and approve access.

Do I need an API key to use Zynta Flow in Claude?

No. Zynta Flow uses OAuth 2.1 with PKCE and Dynamic Client Registration, so Claude registers itself and setup is a pasted address plus a sign-in. A personal access token exists only for clients that cannot run OAuth.

What can Claude do in Zynta Flow over MCP?

It can generate carousels and single image posts, adjust slide layouts, attach your images or Unsplash photos, write captions in the brand voice, read and update brand kits, create calendar entries, list drafts and connected accounts, and pull analytics.

Can I make carousels for several brands at once from Claude?

Yes. You can ask for the same brief across different brand kits in one message and get back a set of posts that each follow their own brand. This is where the connector saves the most time for agencies and multi-brand teams.

Why does the Zynta Flow connector fail to add in Claude?

Usually the address is incomplete. Use the full server address, https://app.zyntaflow.com/mcp; the bare zyntaflow.com domain is the marketing site, not the MCP server.

Does Zynta Flow MCP cost extra?

No. MCP is included on every plan and in the trial, and actions spend credits from your normal balance at the same rate as the app, for example 20 to 45 credits for an AI carousel and 10 for a caption.